baber/WOPTO huggingface dataset:
Patent JP-H11355849-A (JP)
Title: Synchronizing signal detection method using pilot and tentative discrimination data symbol, mobile communication receiver and interference eliminating device
Inventor: SEKI HIROYUKI
IPC: H04B1/707
Filed: 1998-06-05
Abstract: PROBLEM TO BE SOLVED: To improve estimating accuracy of a characteristic of a propagation path, when conducting synchronization detection by using a pilot symbol extrapolated in other channel than a channel for a data symbol for estimating the characteristics of a propagation path. SOLUTION: A device adopting this method is provided with a propagation path estimate section 5 by pilot that estimates the characteristics of a propagation path by using a pilot symbol that is separated through multiplication of an orthogonal code Y, a tentative discrimination section 8 that tentatively discriminates a received data symbol, based on a propagation path estimate value ξ1 by the propagation path estimate section 5, a propagation path estimate section 9 by pilot and tentative discrimination data, that uses a tentative discrimination data symbol by the tentative discrimination section 8 and the pilot symbol to estimate the characteristic of the propagation path, and a final discrimination section 13 that discriminates received data symbol, based on a propagation path estimate value ξ2 by the propagation path estimate section 9. Thus, the device regards the tentative discrimination data symbol as the pilot symbol to estimate the characteristic of the propagation path with high accuracy and to conduct synchronization detection.
Patent JP-H079037-A (JP)
Title: Method for bending work using roll bender
Inventor: YOKOYAMA MASAO
IPC: B21D5/14
Filed: 1993-06-28
Abstract: PURPOSE:To improve versatility of a roll bender by compression bending other than roll bending by the roll bender. CONSTITUTION:The roll bender is constructed so as whose bending rolls 1 and 2 are relatively two-dimensionally moved to displace to a center roll 3 on a plane which orthogonally crosses with the axial direction of center roll 3. In a state in which a work W is passed between the bending rolls 1 and 2 and center roll 3, the bending rolls 1 and 2 are moved to displace along the outer circumference of center roll 3 and the work W is bent in a shape along the outer circumferential shape of center roll 3.
Patent JP-S5582572-A (JP)
Title: Audio multiplex receiver
Inventor: MIKI YUTAKA
IPC: H04N5/00
Filed: 1978-12-19
Abstract: PURPOSE:To increase the accuracy of discrimination with small size and low cost circuit and to increase the reliability, by discriminating whether or not multiplex broadcast with the amplitude of control signal through the provision of signal selection means, and enabling the identification of dual broadcast or stereo broadcast with frequency. CONSTITUTION:The detection output of the terminal 23 passes through BPF 24, it is detected at the AM detection circuit 28, the output is smoothed at the smooth circuit 25, it is converted into binary level at the threshold value circuit 26 and outputted at the output terminal 27. Thus, whether or not multiplex broadcast is discriminated. On the other hand, the output of the circuit 28 is inputted to the signal selection means 29. The output of the means 29 is different for the magnitude with the input frequency, the magnitude of the output is smoothed at the smooth circuit 30 and converted into binary level at the threshold value circuit 31. One of the control signals different in two frequencies is outputted at the terminal 32 as H  level and another is as L level. Accordingly, the identification of dual or multiplex  broadcast is made by the binary level at the terminal 32.
Patent JP-H027377-A (JP)
Title: Spark plug
Inventor: NAGATA SHINJI
IPC: H01T13/14
Filed: 1988-06-25
Abstract: PURPOSE:To improve a characteristic of anti-carbon pollution without changing length of a leg length part by forming a subject metal fitting and an electrostatic screening layer in which conductive connection is applied electrically inside the wall of the leg length part. CONSTITUTION:The device is stick-shaped with its shaft center pierced with a center electrode 2, and an insulator 3 having a head 33, a drum 34 with a relatively larger diameter, a leg length part 32 with a relatively smaller diameter is engaged into a cylinder-shaped subject metal fitting 1 in which the drum 34 and the leg length part 32 are enveloped, so as to form a spark discharge gap between a point 21 of the center electrode 2 and an earth electrode 11 formed on the point of the metal fitting 1. An electrostatic screening layer 51 where conductive connection is applied electrically with the subject metal fitting 1 is formed inside the wall of the leg length part 32. Electric field is thus hard to generate on the surface of a leg length part during discharge of a plug. In this way, pollution of an insulator due to adsorption of carbon can be prevented without elongation of length of a leg length part.
Patent JP-H10336028-A (JP)
Title: Frequency adjusting method for piezoelectric oscillator using pll circuit
Inventor: SATO TADASHI
IPC: H03B5/32
Filed: 1997-05-30
Abstract: PROBLEM TO BE SOLVED: To obtain plural waves of output frequencies from the same oscillation frequency by inputting the frequency dividing value of a frequency divider so as to obtain a prescribed output frequency in a state that the frequency deviation of oscillation frequencies is within an allowable frequency deviation, so as to simplify the output frequency adjustment of a reference oscillator. SOLUTION: A PLL circuit 1 is composed of a reference frequency divider Rf, a phase comparator, a voltage control oscillator and a feedback frequency divider Fb. Frequency dividers Rf and Fb constituting this PLL circuit 1 measure an input oscillation frequency Fin and according to the measured value, a frequency divided value is inputted to the frequency dividers Rf and Fb by an external frequency divided value input means 2 to obtain an output frequency Fout from the circuit 1. By this constitution, though the oscillation frequency is remarkably different, plural waves of output frequencies are obtained from the input oscillation frequency without regard to the inputted oscillation frequency by inputting the frequency divided values of the frequency dividers Rf and Rb from outside.
Patent JP-H07140720-A (JP)
Title: Carrier for developer
Inventor: MOCHIZUKI CHIHARU
IPC: G03G9/107
Filed: 1993-06-28
Abstract: PURPOSE:To decompose a resin in the carrier of a developer discarded after use, to return the resin to the natural world and to prevent the environmental pollution of the earth by incorporating a photodecomposition material and/or a photosensitizer into the carrier. CONSTITUTION:A photodecomposition material and/or a photosensitizer is incorporated into a carrier. The photocomposition material is, e.g. a resin having ketone groups and a sensitizer. Since the ketone groups have the max. absorption at 280-290nm, radicals are formed when UV is absorbed and the radicals react with oxygen to accelerate photo-oxidation by which the principal chain of the resin is broken. The ketone resin is, e.g. a polymer of a vinyl ketone monomer or a copolymer of a vinyl ketone monomer with a vinyl monomer. The photosensitizer is, e.g. metallic diethyl carbamate iron, acetylacetonate-iron (III), metallic stearate, anthraquinone, its deriv., thiodipropionic acid, benzophenone or its deriv.
Patent JP-H1160546-A (JP)
Title: 4, 6-diaminoresorcinol and/or its salt, production of polybenzbisoxazole obtainable from same and its formed body
Inventor: MATSUOKA TAKESHI
IPC: C08G73/22
Filed: 1998-06-05
Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound which is useful as a raw material for polybenzbisoxazole capable of being processed into a fiber having high strength and high elastic modulus, and which has extremely improved safety by compounding a specific reducing agent in a specific amount. SOLUTION: This compound is obtained by homogeneously spraying, by using a sprayer, a reducing agent [e.g. tin (II) chloride or its hydrochloric acid solutionl having a standard oxidation-reduction potential of >=-0.20 volt and <=0.34 volt to 4,6-diaminoresorcinol 2 hydrochloric acid salt, which has been synthesized, for example, by a known method, and subsequently drying under reduced pressure by heating and stirring at temperatures of 40-100 deg.C in a dryer to obtain the objective compound containing the reducing agent in an amount of <=100-10,000 ppm. By reacting with an aromatic dicarboxylic acid, the compound can give polybenzbisoxazole, which can be molded especially into a form of fiber or film.
Patent JP-H0453646-A (JP)
Title: Magnetic chuck
Inventor: MARUYAMA MASAAKI
IPC: B23Q3/15
Filed: 1990-06-18
Abstract: PURPOSE:To achieve the attraction and release of a magnetic substance surely as well as to secure such a magnetic chuck that is small in distortion of a faceplate by making a working plane into an exciting state and a nonexciting state selectively through both first and second small exciting currents. CONSTITUTION:A permanent magnet 16 arranged in a space between a bottom part 26 of a housing 12 and a yoke part 30 of an iron core 14 is magnetized in an axial direction of the housing 12, and when a working plane 42 is set to an exciting state, a control circuit 52 outputs a first control signal to a selector circuit 50, and a first exciting current is fed to an exciting coil 18 from the selector circuit 50, while the extent of magnetic flux equivalent to the magnetic flux sum by the permanent magnet 16 and the exciting coil 18 passes through the working plane 42 which is therefore placed in a strong exciting state. When the working plane 42 is placed in a nonexciting state, the control circuit 52 outputs a second control signal to the selector circuit 50, and magnetic flux by the permanent magnet 16 and another magnetic flux by the exciting coil 18 are varied in the direction each, and since the absolute value is set so as to become an equal magnetic flux value, the working plane 42 is placed in the nonexciting state.
Patent JP-S6218565-A (JP)
Title: Electrophotographic sensitive body
Inventor: MATSUMOTO MASAKAZU
IPC: G03G5/06
Filed: 1985-07-17
Abstract: PURPOSE:To obtain an electrophotographic sensitive body having excellent sensitivity and potential stability in durable use by incorporating a specific tetrakis azo pigment into a photosensitive layer. CONSTITUTION:The photosensitive layer contains the tetrakis azo pigment expressed by the formula 1. The tetrakis azo pigment expressed by the formula has the structure symmetrically having four azo coupler components via N with a vinyl group having bivalent org. groups Ar1 and Ar2 on both sides as the center of the molecular skeleton and containing long pi-electron conjugated system and the sensitivity and the potential stability in durable use are considered to be assured as such structure contributes to the improvement of the photoconductivity of the pigment and the improvement of either or both of carrier forming efficiency and conveyability. The representative example of the tetrakis azo to be used is shown by the formula 1-1.
Patent JP-S52128242-A (JP)
Title: Dentifrice composition
Inventor: KAWAGUCHI KAZUHIRO
IPC: A61K8/00
Filed: 1975-12-29
Abstract: PURPOSE:To make a tooth paste composition with improved low-temperature stability which, after storage at low temperatures, can be pressed out from the tube in a satisfactory state without causing liquid separation and chapping of the skin, by formulating a foaming agent comprising higher alcohol sulfates in a specific proportion.
Patent JP-H05192479-A (JP)
Title: Thread cutter for dual chain-stitch sewing machine
Inventor: IKEDA TAKAFUMI
IPC: D05B65/02
Filed: 1991-06-01
Abstract: PURPOSE:To provide the title cutter which facilitates the adjusting work thereof by varying the position of a lower knife to a looper without shifting the relative positional relation between e lower knife and an upper knife, in the title cutter. CONSTITUTION:A lower knife lever 64, on which a lower knife 65 is fixed, and an upper knife lever 62, on which an upper knife 63 is fixed, are rotatably connected to a cylindrical pivotally-supportable member 86. This member 86 is rotatably fastened on a base plate 61, at a position eccentric to the center of a cylindrical shaft part. The position of the lower knife 65 to a looper 54 is varied by turning and adjusting the member 86, without shifting the positional relation between the lower knife 65 and the upper knife 63.
Patent JP-S5281514-A (JP)
Title: Supervisory equipment of gate signal amplifier circuit of thyrister fo r chopper
Inventor: AWANO TOSHIAKI
IPC: H02M3/135
Filed: 1975-12-29
Abstract: PURPOSE: To prevent the burning of connected circuit parts by stopping the control circuit generating the signal on the contenuing case of more than a certain time measuring the switch on time of the output transister. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H05194481-A (JP)
Title: Benzodioxane derivative for antipsychotic
Inventor: GEIRII POORU SUTATSUKU
IPC: A61K31/357
Filed: 1992-06-17
Abstract: The compounds: <CHEM> wherein R<1> and R<2> are, independently, hydrogen, alkyl, alkoxy, aralkoxy, alkanoyloxy, hydroxy, halo, amino, mono- or dialkylamino, alkanamido, or sulfonamido, or R<1> and R<2> together form methylenedioxy, ethylenedioxy, or propylenedioxy; R<3> is hydrogen or alkyl; n is one of the integers 2, 3 or 4; R<1><2> is NR<4>R<5> in which R<4> and R<5> are, independently, hydrogen, alkyl, cycloalkyl, alkanoyl, aroyl, alkylsulfonyl or arylsulfonyl, or R<4> and R<5> together form a 3-7 membered polymethylene ring; R<1><0> is hydrogen or, when taken with R<1><2>, R<1><0> and R<1><2> complete the six membered ring- <CHEM> in which X is O or NR<8>, in which R<8> is hydrogen or alkyl; or a pharmaceutically acceptable salt thereof, are antipsychotic, antidepressant and anxiolytic agents useful in the treatment of multi-CNS disease states.
Patent JP-S6427300-A (JP)
Title: Printed circuit board transporting system
Inventor: MAAKU ESU ENGERU
IPC: B23P19/00
Filed: 1988-06-24
Abstract: PURPOSE:To obviate the need of using a system exclusively for a certain type of circuit boards and to provide a transportation system capable of utilizing a certain part of conveyors or related robots efficiently for transporting each workpiece to a proper component packaging apparatus or causing it to bypass the packaging apparatus, by providing means for identifying work pieces. CONSTITUTION:Frames tor carrying and conveying printed circuit board workpieces have mechanically readable representations (e.g. bar codes) attached thereon, so that the frames are guided to proper robots. One method of guiding a workpiece to a robot work station is implemented by arranging power-driven conveyors 6 in the upper and lower positions on a vertical plane. If the robot work station 8 is to be disposed on one of the conveyors, the work station 8 should be disposed on the upper conveyor while the lower conveyor provides a bypass therefor. Elevators 5, 12 are provided on the opposite sides of the work station so that they connect the upper and lower conveyors. In this manner, it is possible to provide a transportation system capable of realizing efficient packaging of components.
Patent JP-S6138138-A (JP)
Title: Air-fuel ratio control system for automobile engine
Inventor: ABE KUNIHIRO
IPC: F02D41/34
Filed: 1984-07-27
Abstract: PURPOSE:To aim at making the control of air-fuel ratio appropriate, by enabling a variation in the control characteristic of a sensor such as, for example, an air- flowmeter, for giving data relating to the control amount of an actuator, to be compensated upon occurrence of knocking. CONSTITUTION:In an air-fuel ratio control system, a microcomputer 15 computes the amount of fuel injection in accordance with the outputs of detecting means such, as, for example, an air-flow meter 17, a crank angle sensor 21, etc. Further, when it is determined that the operation of an engine is in its steady state condition, information from an O2 sensor 16 is taken as a learning value into a predetermined table, and this learning value is used as a control parameter for the control of air fuel ratio of the engine 1. In this arrangement, when a knocking sensor detects knocking of the engine 1, a control is made such that this learning value is written on a second table in order to compensate the control characteristic of the detecting means for giving data relating to the control amount of an actuator such, as for example, a fuel injection valve 4.
Patent JP-2000344574-A (JP)
Title: Composition and method for forming pnzt ferroelectric thin film
Inventor: SOYAMA NOBUYUKI
IPC: C04B35/49
Filed: 1999-06-04
Abstract: PROBLEM TO BE SOLVED: To provide a composition for forming a PNZT ferroelectric thin film excellent in storage stability for a long period of time and to provide a method for forming the same. SOLUTION: In a composition for forming a perovskite-type PNZT ferroelectric thin film, which contains metal alkoxides of Pb, Nb, Zr and Ti and partially hydrolyzed compounds of the alkoxides and/or organic acid salts of these metals, the number of particles having particle sizes of >=0.5 μm is controlled to be not more than 50 pieces/ml. The method for forming the PNZT ferroelectric thin film comprises repeating the process comprising applying the composition for forming the PNZT ferroelectric thin film onto a heat resistant base plate and then heating the coated material in air, or an oxidizing atmosphere or an atmosphere containing steam until a film having a desired thickness is obtained, and then firing the coated film at a temp. equal to or higher than the crystallization temp. in the final heating process of the above process or after heating.
Patent JP-S5780862-A (JP)
Title: Facsimile device
Inventor: KANEDA MASARU
IPC: B41L43/00
Filed: 1980-11-08
Abstract: PURPOSE:To prevent contents of recorded pictures from leaking to the external, by folding and outputting recorded pictures, which are outputted from the facsimile device, one by one. CONSTITUTION:A recorded picture 7 is fed out by a roller 13 and advances along a guide 15, and the tip of the recorded picture 7 reaches a bottom part 17 of the guide 15, and the recorded picture 7 is stopped. Since the recorded picture 7 is fed out furthermore, the fed-out part is caught by a guide 14 and advances with the tip stopped still, and therefore, the recorded picture 7 brought into contact with the left of the guide 15 is moved to the right, and the recorded picture 7 is folded finally and is ejected by a roller 16.
Patent JP-H055588-A (JP)
Title: Temperature controller for lamp-annealing furnace
Inventor: TOUZU HIDEKI
IPC: G05D23/27
Filed: 1991-06-28
Abstract: PURPOSE:To accurately control a temperature by switching to a closed loop control after a difference of gradients of a measured temperature and a target temperature control pattern, is reduced by certain degree even if it falls within a closed loop controllable temperature range. CONSTITUTION:After heating, an open loop control for controlling outputs of lamp groups 6 is executed according to a predetermined lamp output control pattern until an output of a radiation thermometer 12 reaches a predetermined closed loop controllable temperature range. When it reaches the closed loop controllable temperature range, a ratio of a gradient of a measured temperature by the thermometer 12 to that of a target temperature control pattern, is obtained. The open loop control is continued in the meantime while the temperature gradient ratio is smaller than a predetermined control switching reference value, and a closed loop control for controlling a lamp output so that the measured temperature coincides with the target temperature control pattern if it becomes a reference value or more. A lower limit of the closed loop controllable range is a lowest temperature or higher to be measured by a radiation thermometer, and set, for example, to 300 deg.C.
Patent JP-H026811-A (JP)
Title: Bath water cleaning device
Inventor: HORI MICHIMASA
IPC: B01D35/027
Filed: 1988-06-27
Abstract: PURPOSE:To sterilize bath water to reuse with circulation by using the bath water cleaning device consisting of a sterilizing lamp and a filtration vessel. CONSTITUTION:The bath water sucked from a suction opening 4 is introduced into a bath water cleaning unit 2 through a return pipe 9. The bath water introduced into the bath water cleaning unit 2 is introduced from the side part of a filter vessel 17 into the filter vessel 17 where hair, etc., are removed when the water passes through the filter 16. Then, the water is introduced into a circulation pump 18 from the lower part of the filter vessel 17 through a connection pipe. And, the bath water discharged from the circulation pump 18 is sterilized by a ultraviolet ray sterilizing vessel 19 and introduced into the filtration vessel 22. The bath water introduced into the filtration vessel 22 is firstly heated in contact with the heat exchanger 20 and then dirt, such as grease, organic substances, is removed when the water passes through a filter stone layer 21 and returned into a bathtub 1 through a bath water return opening 7 and a spouting opening 5.
Patent JP-H0248103-A (JP)
Title: Coated cemented carbide tool and its manufacturing process
Inventor: FUJII HIROSHI
IPC: B23P15/28
Filed: 1989-06-20
Abstract: PURPOSE:To get a coated cemented carbide tool being stable and having a long service life by making a coating film near the cutting edge of a tool thin on both sides of a rake face and a flank or getting rid of a coating film on both sides of the rake face and the flank near the cutting edge of the tool. CONSTITUTION:A base substance is made of cemented carbide consisting of iron family metals such as WC, TiC, TaC and the like and a hard sintered alloy such as cermet consisting of mainly TiC, TiN and the like. On this base substance, a coating layer consisting of IVa, Va, and VIa families metals in the periodic table which have larger hardness and abrasion resistance than those of the base substance and carbide, nitride, carbon oxide, carbon nitride, and oxide of Al, Zr etc. or these solid solution is installed. The coating film near the cutting edge of a coated cemented carbide cutting tool is made thin on both sides of a rake face C and a flank D or the coating film is removed. Thus it is possible to attain not only epoch-making toughness but also abrasion resistance.
Patent JP-H0323859-A (JP)
Title: Protective lens for goggles and method for assembling the same
Inventor: TAKEHARA TADAYASU
IPC: A61F9/02
Filed: 1989-06-21
Abstract: PURPOSE:To widen a visual field in case of use, to properly protect the face part and, further, to simply prepare a protective lens by a mass production system by mounting the protective lens equipped with corrective power to goggles. CONSTITUTION:A protruding step part 5 having a recessed groove part formed to the outer periphery thereof is formed to the rear of each of corrective power lenses 3, 3 made of a transparent synthetic resin formed as concave lenses and a flange part 6 having a diameter larger than that of said protruding step part 5 is formed to the outer peripheral part of each of said lenses 3, 3 on the surface side thereof. Screws 9 for tightening the partially notched ring-shaped clamp frames 7, 7 for fixing the corrective power lenses 3, 3 to a main body lens 1 are screwed in both notched end parts 8, 8 of the frames 7, 7. By this method, a wide visual field can be secured without widening the areas of the corrective power lenses 3, 3 to a necessary degree or more. Further, the region other than the face covered with the corrective power lenses 3, 3 can be used in a state properly protected by the main body lens 1 and the correction of sight and the protection of the face over a wide area are achieved by one protective lens.